Počet záznamů: 1
Nanobubble-assisted formation of carbon nanostructures on basal plane highly ordered pyrolytic graphite exposed to aqueous media
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SYSNO ASEP 0341532 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Nanobubble-assisted formation of carbon nanostructures on basal plane highly ordered pyrolytic graphite exposed to aqueous media Tvůrce(i) Janda, Pavel (UFCH-W) RID, ORCID
Frank, Otakar (UFCH-W) RID, ORCID
Bastl, Zdeněk (UFCH-W) RID, ORCID
Klementová, Mariana (UACH-T) RID, SAI, ORCID
Tarábková, Hana (UFCH-W) RID, ORCID
Kavan, Ladislav (UFCH-W) RID, ORCIDZdroj.dok. Nanotechnology. - : Institute of Physics Publishing - ISSN 0957-4484
Roč. 21, č. 9 (2010), 095707Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova scanning tunneling microscopy ; hydrophobic surfaces ; Raman spectroscopy Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP LC510 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy IAA400400804 GA AV ČR - Akademie věd KAN200100801 GA AV ČR - Akademie věd CEZ AV0Z40400503 - UFCH-W (2005-2011) AV0Z40320502 - UACH-T (2005-2011) UT WOS 000274360300032 DOI 10.1088/0957-4484/21/9/095707 Anotace Ambient gas nanobubbles of size similar to 10(1)-10(2) nm occupying the hydrophobic surface of basal plane highly ordered pyrolytic graphite (HOPG) immersed in aqueous media at room temperature cause exfoliation of the top graphene layers, as revealed by both in situ and ex situ atomic force microscope (AFM) imaging. The formation of nanoparticles composed mostly from graphene-based nanoscrolls, nanohorn-like and onion-like nanostructures was resolved by high resolution transmission electron microscopy (TEM) and examined by diffraction and x-ray photoelectron spectroscopy (XPS) analyses. The diameter of nanostructures varied from about 5 nm for single-layered scrolls to tens of nanometres for multishells. Raman spectroscopy confirmed the structural rearrangement of the HOPG basal plane after the above-mentioned treatment. The implications for nanobubble interfacial forces are discussed. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2011
Počet záznamů: 1